REDUCING DELAYS ASSOCIATED WITH RESTORING QUARANTINED FILES

摘要

A method to reduce delays associated with restoring quarantined files is disclosed. In one embodiment, such a method includes maintaining, for a file, a “current” pointer pointing to a current copy of the file and a “backup” pointer pointing to a virus-free backup copy of the file. The method receives an I/O request (a read or write request) to access the file. In response to receiving the I/O request, the method scans the current copy of the file for viruses. In the event a virus is discovered in the current copy, the method modifies the “current” pointer to point to the backup copy. This causes the backup copy to become the new current copy. The method then executes the I/O request with respect to the new current copy. A corresponding system and computer program product are also disclosed and claimed herein.

主权项

1. A method to reduce delays associated with restoring quarantined files, the method comprising:
maintaining, for a file, a “current” pointer pointing to a current copy of the file and a “backup” pointer pointing to a virus-free backup copy of the file; receiving an I/O request to access the file; scanning the current copy of the file for viruses in response to receiving the I/O request; in the event a virus is discovered in the current copy, modifying the “current” pointer to point to the backup copy such that the backup copy becomes a new current copy; and executing the I/O request with respect to the new current copy.